baber/WOPTO huggingface dataset:
Patent GB-559487-A (GB)
Title: Improvements in socks and the method of making the same
IPC: D04B9/46
Filed: 1942-08-20
Abstract: 559,487. Knitting socks by hand. PATONS & BALDWINS, Ltd. (Patons & Baldwins, Ltd.). Aug 20, 1942, Nos. 11746 and 15940. [Class 74 (ii)] In the knitting of a sock by hand a yarn of a colour contrasting with the yarn stock is knitted to form the line 16 of stitches between the heel 12 and the foot portion 11. Long ends 15 may be provided upon the yarn forming the line 16 and may be used for sewing the side edges 14 of the heel flap to the adjacent portions of the foot. The stitches along the edges 14 may be picked up with a yarn also of contrasting colour so that the area of the heel flap is well defined.
Patent GB-1031550-A (GB)
Title: Spiro-steroid guanylhydrazones and their production
IPC: A61K31/575
Filed: 1965-03-19
Abstract: The invention comprises guanylhydrazones of aldehydo- or keto-steroids containing a spirocyclic, non-basic ring system, the guanylhydrazone moiety having the formula = N-NH-C(NHB)-NA wherein A is a hydrogen atom or a C1- 6 alkyl group and B is a hydrogen atom or a C1- 6 alkyl group which may be joined to A, a nitro group, or a -(CH2)nNRR1 group in which n is 2, 3 or 4 and R and R1 are C1- 6 alkyl groups, which may be joined to form a ring, pharmaceutically acceptable acid addition salts thereof, and then preparation from the corresponding steroid aldehyde or ketone by (a) reaction with an aminoguanidine or an acid addition salt thereof, (b) formation of a thiosemicarbazone or S-alkyl-isothiosemicarbazone, followed by reaction with an amine, or (c) formation of a hydrazone, followed by reaction with a cyanamide or an S-alkyl-isothiourea.  Spirocyclic ring systems specified are spirostanes, spirolactones, spirolactams, cyclic ketals and cyclic thioketals.  The compounds of the invention have cardioactive properties.
Patent GB-1527576-A (GB)
Title: Cutting appliance
IPC: B27B5/00
Filed: 1977-03-21
Abstract: 1527576 Cutting SAINT-GOBAIN INDUSTRIES 21 March 1977 11760/77 Headings B5L and B4B [Also in Division B3] A sawing apparatus for cutting a mineral fibre sheet 1 comprises four rotary blades 18 located in a common plane and driven with adjacent blades rotating in opposite directions and without adjacent blades touching each other. The apparatus may be used to cut a continuously moving web by mounting the blades on a bridge which moves with the web during the cutting process.
Patent GB-237560-A (GB)
Title: Improvements in or relating to cans or boxes
IPC: B65D25/52
Filed: 1925-05-06
Abstract: 237,560. Longstreth, B., (Assignee of Cogswell, F. H.). July 26, 1924, [Convention date]. Powder distributors. - Relates to hinged metal pouring spouts with which are associated sifters, for cans, boxes, and like containers. Two forms are described. That shown in Fig. 2 comprises an upwardly tapering spout 3, Fig. 4, hingedly connected with the container wall by means of a tongue 7 passed through a slot in the part 6. The sifter 4, Fig. 5, rests loosely in the spout, and is raised into the dotted line position of Fig. 2 when sifting is required. The form of spout shown in Fig. 7 is provided in the lower portion with perforations 12 adapted to be covered by a sliding member 13, actuated by a finger piece, when moved down into its lower position. This form acts as a pouring spout when open and as a sifter when it is closed and the part 13 raised.
Patent GB-377225-A (GB)
Title: Improvements relating to slicing machines
IPC: B26D5/00
Filed: 1931-04-22
Abstract: 377,225. Slicing-machines. NAAMLOOZE VENNOOTSCHAP MAATSCHAPPIJ TOT VERVAARDIGING VAN SNIJMACHINES VOLGENS VAN BERKEL'S PATENT EN VAN ANDERE WERKTUIGEN, and BERKEL, W. A. VAN, 33, Boezemsingel, Rotterdam, Holland. April 22, 1931, No. 11893. [Class 28 (ii).] In a slicing machine connected with the driving motor through belts, a belt tension regulator and a brake are connected to a common operating handle whereby the belt tension regulator is withdrawn from the belt, thus stopping the driving of the machine, and the brake is at the same time or immediately afterwards applied to the belt or belt pulley to bring the machine quickly to rest. As shown in the Figure, the pulley 9 is driven by a motor (not shown) and is connected by a belt 11 to a pulley 10 which is connected through sprockets 12, 13, 14 and chain 16 to the reciprocating- carriage operating mechanism. The belt tensioner 17 is mounted on a lever 18 pivoted at 19 and is kept against the belt by a coiled spring 20 anchored at 21 to the frame. A brake shoe 30, normally kept out of contact with the belt 11 by leaf springs 31, 32, is connected by a cable 49 to a double-armed lever 47 associated with the operating handle 40. The handle 40 has a spring-pressed sliding head 40a which works over a quadrant 44 having a step 43 for locking the handle in an intermediate position in which the tension is removed from the belt but the brake is not applied. In this position the machine may be driven by hand. The handle 40 is secured on a shaft 41 carrying an arm 46 connected by a link 48 with the belt tensioner, and the arm 47 is loose on the shaft 41 so that in swinging the handle from left to right, as shown in the Figure, the tension is first removed from the belt and the brake subsequently applied. The brake is operated by the pin 52 on the arm 46 contacting with the arm 47, and the arm 47 is held in inoperative brake position by a stationary pin. In a modification the brake shoe bears on the belt pulley itself and is normally retained inoperative by a leaf spring secured to the stationary knife-supporting bracket. The shoe is prevented from tipping when inoperative by a peg on its back engaging with a pin on its supporting lever. The belt tensioner may be operated by a cable and the application of the brake and the release of the belt tensioner may be effected simultaneously.
Patent GB-473532-A (GB)
Title: Improvements in or relating to flexible welding rods, particularly for use in automatic welding
IPC: B23K35/02
Filed: 1937-04-26
Abstract: 473,532. Uniting by fusion. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN. April 26, 1937, No. 11893. Convention date, April 28, 1936. [Class 83 (iv)] A fiexible weld rod, particularly for automatic arc welding is made by close winding an apertured strip of metal 2 and then forcing slagforming material 3 through the apertures to fill the bore. The strips may be formed with apertures 1 or with notched edges 5, Fig. 4.
Patent GB-165076-A (GB)
Title: Improved manufacture of the products of oxidation of aromatic hydrocarbons
IPC: C07D307/60
Filed: 1921-04-27
Abstract: Maleic acid or its anhydride is obtained together with benzaldehyde and benzoic acid by passing toluene vapour and an oxygen containing gas over a vanadium oxide catalyst at a temperature between 400 DEG C. and 550 DEG  C.  Some fumaric acid may also be formed.  In place of toluene other aromatic hydrocarbons may be used; thus, naphthalene gives phthalic anhydride, naphthoquinone, and maleic acid, anthracene gives anthraquinone and maleic acid; xylene, methylnaphthalene, fluorene, or acenaphthene also yield maleic acid.
Patent GB-448005-A (GB)
Title: Superheterodyne receiver for wireless reception
IPC: H03H7/01
Filed: 1935-04-23
Abstract: 448,005. Valve circuits for wireless reception. HAZELTINE CORPORATION, 15, Exchange Place, Jersey City, New Jersey, U.S.A.-(Assignees of Harnett, D. E. ; 16, Puritan Avenue, Tuckahoe, New York, U.S.A.) April 23, 1935, No. 12163. Convention date, May 31, 1934. [Class 40 (v)] The intermediate frequency band of a superheterodyne receiver may be widened to include a greater portion of either side-band by shifting the band in either direction from the intermediate carrier frequency by an amount which still includes that frequency. In the arrangement shown, the coupling between the mixing valve 13 of a superheterodyne receiver and a following intermediate frequency amplifier 14 comprises a pair of coupled circuits constituted by coupled inductances 24, 25, shunted by fixed and variable condensers 26, 28, 27, 29, the latter being unicontrolled. The circuits are so designed that at the midpoint of adjustment of condensers 27, 29, the coupling system 23 is tuned to the intermediate frequency. The coupling between the amplifier 14 and detector 15 comprises a pair of fixed-tuned circuits 30, also tuned to the intermediate frequency. As the condensers 27, 29 are varied the resonance band of coupling 23 is displaced in frequency from that of coupling 30, resulting in a widening of the response curve of the receiver as a whole either to one side or the other of the intermediate carrier frequency. By this means, interference on one sideband is minimized by moving the band in the opposite direction. Several intermediate frequency amplifiers may be used in cascade with a corresponding number of coupling pairs such as 23, 30 ; also only one of the coupling members of 23 may be detuned with respect to the I.F. Several other variations of this kind are referred to.
Patent GB-552253-A (GB)
Title: Improvements in the production of cellodextrin derivatives
IPC: C08B3/12
Filed: 1941-09-20
Abstract: 552,253. Cellodextrin derivatives. BRITISH CELANESE, Ltd. Sept. 20, 1941, No. 12192. Convention date, Dec. 27, 1940. [Classes 2 (ii) and 2 (iii)] Lower fatty acid esters of cellodextrin, having a molecular weight corresponding to 7-14 glucose residues, are prepared by treating cellulose with a lower fatty acid anhydride in a solvent such as glacial acetic acid containing a condensing agent such as sulphuric acid in proportion of 20-30 per cent of the weight of cellulose used, and continuing the treatment for 20 to 60 hours until the ester has the desired molecular weight as calculated from its iodine number. The larger the amount of catalyst or the higher the temperature the shorter should be the time of treatment. In the case of acetylation, the temperature should not exceed 40‹C. The catalyst may be a polybasic mineral acid, or zinc chloride, or a mixture of sulphuric and phosphoric acids. In an example, 500 parts of cotton linters are treated with 1888 parts of acetic acid, 1947 parts of acetic anhydride and 100 parts of sulphuric acid for 56 hours at a maximum temperature of 30‹C. The products are poured into water and the precipitate washed first with methyl alcohol and then with water. A yield of 88 per cent. of cellodextrin acetate is obtained having an acetyl value of 63.8 and a molecular weight of 3000. The product is soluble in acetone and miscible with cellulose acetate spinning solutions.
Patent GB-669768-A (GB)
Title: Improvements in and relating to fire-backs
IPC: F23M5/00
Filed: 1949-05-25
Abstract: 669,768. Firebacks. MARSHALL & CO. (LOXLEY), Ltd., T., and MASON, A. Jan. 31, 1950 [May 25, 1949], No. 12213/49. Class 126 A fireback comprises four pieces, one constituting the bottom of the back, another the top of the back and others constituting the side cheeks, so arranged that adjustment may be made to enable the fireback to fit grates of different sizes and shapes. The side cheeks 9 and lower part 8 of the back are vertically arranged in the fireplace, the upper part 7 of the back being placed on the lower part 8 of the back so that it is inclined forwardly and rests against the side cheeks 9. Angular adjustment of the top part 7 of the back and the side cheeks 9 may be made to enable the fireback to fit fireplaces of various shapes and sizes. A recess 12 is formed in the lower part 8 of the back to accommodate the back of a firebasket. The front surface of the back parts 7, 8 is provided with bevels 14a, 14.
Patent GB-435280-A (GB)
Title: Improvements in salt cakes or blocks
IPC: A01K5/015
Filed: 1934-04-24
Abstract: 435,280. Food for animals. ROTO, Ltd., and HOLT, T., Erasmus Street, Collyhurst, Manchester. April 24, 1934, No. 12259. [Class 5 (ii)] Flat sided and elongated moulded salt blocks for use as " mineral licks " for animals, on their front and rear faces or, as shown, on the rear wider face only, and along the edges of such faces are shouldered down or sunk, the sinking extending in a curved path around each corner of such faces, the cross-section being composed of alternate convex and concave curves a, b, c. Specification 243,897, [Class 5 (ii)], is referred to.
Patent GB-1456156-A (GB)
Title: Trace element fertilizers
IPC: C05D11/00
Filed: 1974-03-20
Abstract: 1456156 Trace element fertilizers BASF AG 20 March 1974 [21 March 1973] 12320/74 Heading ClB A solid, water-soluble, trace element fertilizer comprises Mg and one or more of the trace elements Fe, Mn, Cu, Zn, Co and Ni, the Mg and Fe, when present, being in sulphate, nitrite or chloride form or in the form of an N-carboxyalkyl amino acid chelate, and the Mn, Cu, Zn, Co and Ni, when present, being in sulphate, nitrate or chloride form, and one or more N-carboxyalkylamino acid Na and/or K salts. The fertilizer may also contain boric acid or a borate, and a molybdate. The N-carboxyalkylamino acid may be nitrilo acetic acid, ethylenediamino tetra-acetic acid, diethylenetriamino pentaacetic acid, hydroxyethylethylenediamino triacetic acid or cyclohexane-1,2- diamino tetraacetic acid, which acids may also be present in the free acid form. The acids and their Na and/or K salts are preferably present in an amount sufficient to complex at least 40% of the divalent and trivalent metal ions present. The fertilizers may be stored in their solid form and converted to ready-to-use form by dissolution in water.
Patent GB-989016-A (GB)
Title: Improvements in or relating to electrical control systems
IPC: H03K3/53
Filed: 1962-03-30
Abstract: 989,016. Valve and semi-conductor delayed switching circuits. G-V CONTROLS Inc. March 30, 1962 [April 4, 1961], No. 12347/62. Headings, H3P and H3T. A delay circuit comprises a bi-stable element and a source of current which when switched on sets the element to one condition and changes the storage devices, and is such that when the power is switched off, one capacitor is discharged until the difference in voltage between the capacitors is sufficient to fire a breakdown device and so sets the bi-stable element to its other condition. In Fig. 1, upon closing switch 20 current from flow through rectifier 18 to charge capacitors 21 and 22 simultaneously. The charging current for capacitor 22 passes through relay winding 5 so as to change over the relay which being polarized remains in the changed-over condition when the charging current ceases. Upon opening switch 20, capacitor 21 discharges slowly through resistors 27 until after a predetermined time delay the difference in voltage between capacitors 21 and 22 is sufficient to cause a four layer semiconductor diode 30 to break down and to pass a current through winding 6 to restore the relay to its original condition. Diode 28 prevents capacitor 22 discharging during the delay period and diode 18 acts as a rectifier when an alternating current supply is used. Where longer delay periods are required the capacitors 21 and 22 may be replaced by chargeable batteries, the delay time being determined by the discharge time of the battery (Fig. 3, not shown). This figure also illustrates that the winding 5 can be connected in the charge path for capacitor 21 instead of for capacitor 22. Rectifier 28 may be omitted if switch 20 is coupled with a further switch replacing the rectifier and the charging times of the two capacitors can be equalized by adding suitable resistance in the charging circuit (Fig. 4, not shown). In Fig. 5 (not shown) a single relay winding is used and the relay is operated by the charging and discharging current of capacitor 22, the breakdown diode being by-passed by a reversely connected diode to provide a charging current path. In Fig. 6 operation of switch 20 causes capacitors 21 and 22 to charge in a manner similar to Fig. 5. Upon opening the switch capacitor 21 again discharges until the grid cathode voltage of a thyratron falls sufficiently to allow the thyratron to fire. This causes capacitor 22 to discharge through the relay winding and restore the relay.
Patent GB-1165652-A (GB)
Title: Improvements in and relating to Automatic Soil-Sprinkling Arrangements.
Inventor: CHEVRELIERE CHARLES AYME DE LA
IPC: A01G25/16
Filed: 1968-03-14
Abstract: 1,165,652. Measuring moisture content. C.A. DE LA CHEVRELIERE. March 14, 1968 [March 20, 19671, No. 12467/68. Heading G1N. [Also in Division G3] A ground sprinkler is controlled in dependence on the resistance between two electrodes 6, 7 of which one, 6, lies near the surface of the ground and the other, 7, lies at a greater depth in an area having a permanent residual moisture content. Sprinkling is started whenever continuity of moisture between the electrodes is interrupted and continues until this continuity is restored. Because of this continuity, water may rise by capillary effect from the area of permanent residual moisture thereby reducing the rate at which the upper layers dry. Preferably the electrodes are spaced horizontally to obtain a representative sample of the soil. The electrodes may be rods of porous graphite. Further apparatus including a photo-cell may be provided to prevent sprinkling during the hot periods of the day.
Patent GB-433527-A (GB)
Title: Improvements in or relating to apparatus for counting and weighing a predetermined number of cigarettes
IPC: G06M3/02
Filed: 1935-04-26
Abstract: 433,527. Weighing-apparatus fitted to cigarette - making machines. SKODA WORKS, PLZEN, 37, Jungmannova, Prague. April 26, 1935, No. 12520. Convention date, April 26, 1934. [Class 143] Apparatus for counting and weighing a predetermined number of cigarettes delivered from a cigarette-making machine comprises a scale pan of such a form that the cigarettes, when delivered thereto one by one, lie superposed, the one on the other, the scale pan being supported by a member which offers no restraint to its rising motion, means for lowering the member at such a rate that the distance through which each cigarette drops on to the one below is inappreciable, and means for further lowering the supporting member after the predetermined number of cigarettes has been delivered to the scale pan through such a distance as serves to lower the scale pan on to a balance beam whereby the weighing operation is effected. The cigarettes from the cigarettemaking machine are fed in an unbroken stream by a belt 1, Fig. 1, from which they are pushed by helicoidal surfaces 2 on throwing-off discs 3, 4 alternately into the grooves of conveying rollers 5, 6 which deposit the cigarettes in two rows in usual manner on to a transversely running conveyer belt 7. To effect a counting and weighing operation, a one-revolution clutch is coupled up by hand or automatically to drive a cam 13. The cam actuates a lever 9 and moves the throwing-off disc 4 laterally out of action for sufficient time to allow a predetermined number of cigarettes to be carried forward by the belt 1 and deposited in a weighing box 14, Fig. 4, which is open at the side to permit entry of the cigarettes. The weighing box is at the same time lowered by a cam lever 19 and slide 17 as the cigarettes accumulate in a column, and ultimately the weighing box becomes suspended on slotted links 28 carried by the balance beam 23. The balance beam is now deflected and is temporarily retained at its maximum deflection by a pawl 25 to permit checking of the weight against a scale 24. The slide 17 rises and lifts off the weighing box, and the bottom of the box is opened by a stop (not shown) to discharge the cigarettes. The pawl 25 is liberated by mechanism (not shown) to allow the balance beam to return to its original position. The weighing box may be easily removed from the apparatus and has a hinged or transparent side to facilitate inspection of the cigarettes. The balance beam may be provided with a pencil to make a record of the weight, and may also actuate an electromotor to control automatically the feed of tobacco to the cigarettemaking machine.
Patent GB-1413415-A (GB)
Title: Treating elongate material
IPC: F26B21/00
Filed: 1973-03-15
Abstract: 1413415 Drying elongate material THERMAL EXCHANGE SYSTEMS Inc 15 March 1973 [19 April 1972] 12553/73 Heading F4G Elongate material 11 is dried by transporting the material in a slack condition along a path through a treatment chamber 10 wherein an air flow causes the material to take up a sinusoidal formation the amplitude of the troughs and crests being limited. This is achieved by an apparatus which comprises a pair of endless conveyers 71, 81 which are opposed in the treatment chamber and on to the lower one 71 of which the material is fed in a slack condition. The conveyers each comprise a pair of guided chains connected by tiltable support bars, the surfaces of the conveyers being formed by stands of wire in a zig-zag pattern (Fig. 1, not shown) and forming the means by which the aforesaid amplitudes of the material are limited. The chamber 10 supports a centrifugal blower air from which is heated and passed into a pair of plenum chambers 39, 49 one above and one below the path of travel of the material. A plurality of movable or fixed nozzles 42 each extending across the path are provided extending from each of the plenum chambers 39, 49. Those as shown are rockable about a shaft and are driven by a cam-camfollower arrangement against a spring loading (Fig. 7, not shown).
Patent GB-567126-A (GB)
Title: A process for the production of a printing roller to reproduce half-tone copies by photo-mechanical means for textile printing
IPC: F04D25/04
Filed: 1941-09-29
Abstract: 567,126. Photo-mechanical printing surfaces. HEBERLEIN & CO., AKT.-GES. Sept. 29, 1941, No. 12578. Convention date, Nov. 20, 1940. [Class 98 (ii)] An intaglio printing roller having dot-form lands for supporting the doctor is made by photographing the original in a camera having in front of the sensitive film a transparent-dot screen so that the copy is resolved into areas of unequal size, but equal tonal depth, developing the film and, if desired, retouching the negative, printing therefrom a diapositive and chemically reducing this, locally if desired, so that the white dots in the shadows may become more apparent and so yield broader and more wear-resisting land dots on the roller, printing the diapositive on to a roller having a sensitive layer of the wash-out relief kind, developing the layer with water, and finally etching the roller through the layer in known manner. Instead of using the transparent-dot screen in the camera, it may be interposed in printing the diapositive from the camera negative, a punctiform printing light-being used. Instead of chemically reducing the diapositive, the negative may be intensified; and instead of printing the diapositive directly upon the sensitized roller, a master diapositive prepared from it by the known step and repeat printing method may be so used-this master may be equal in length to the length of the roller, and its breadth may,be a submultiple of the circumference of the roller, around which it may be stepped in successive printings. Separate diapositives may be prepared with the aid of colour filters and used to make rollers for multi-colour printing.
Patent GB-1384077-A (GB)
Title: Carrier bag
IPC: B65D33/24
Filed: 1972-03-17
Abstract: 1384077 Carrier bags WINDMOLLER & HOLSCHER 17 March 1972 [8 April 1971] 12668/72 Heading A4G A plastics carrier bag has a form-retaining plastics handle 5 welded to one wall 1, the opposed wall 2 having a flap 3 folded into the bag and welded at its sides to the wall 2 and provided with a slit 4 opposite and level with the bottom of the handle. Wall 1 has a tongue 9 formed by incisions 10, 11 spaced from the welded bag side seams 6, 7 and extending away from the seams at 17, 18 adjacent the lower edge of the flap. The incisions may have rupturable joints 12. In use the tongue is passed under the flap to close the bag, the handle passing through the slit.